Did you know that an Indian has already invented a method to convert hazardous plastic waste into roads?
Prof. Rajagopalan Vasudevan is an ingenious innovator. He has devised a technique of laying down roads made of plastic waste. Known as The Plastic Man of India, Prof, Vasudevan has so far laid down more than 20,000kms of plastic roads in India. A simple and effective method that not only eliminates the problem of plastic waste but increases the longevity of the roads as well.
A professor of chemistry at Thiagarajar College of Engineering, near Madurai, he insists that plastic gets a bad rap. Rather than an incipient environmental calamity, plastic, in Vasudevan’s opinion, is a “gift from the gods”; it’s up to humans to use it wisely. And he’s devised a way to transform common plastic litter—not only thicker acrylics and bottles but also grocery bags and wrappers—into a partial substitute for bitumen in asphalt.
Plastic waste helps increase the strength of the road, reducing road fatigue. These roads have better resistance towards rain water and cold weather. Since a large amount of plastic waste is required for a small stretch of road, the amount of waste plastic strewn around will definitely reduce.
Prof R Vasudevan’s inclination to keep experimenting led to another innovation. He decided to try creating a stone block with plastic coating and, in 2012, ‘plastone’ took birth. A plastone block is made from a mixture of waste plastic and stone. It has been found to withstand more pressure and it resists water percolation. In the professor’s department of chemistry they have made plastone blocks using granite and ceramic waste, along with plastic waste.
Each plastone block consumes 300 plastic carry bags and around six PET bottles.
“It is an easier way of disposing off plastic bottles which are found scattered all over,” points out Dr. Vasudevan.
Almost 10% of solid waste consists of used materials that can be broken into pieces and used in the making of plastone. Industrial slug can also be used in the process. One of the foremost advantages of plastone is its non-porous nature and the ability to prevent water penetration.
Plastone can be used for flooring, especially outdoors. It can be a cheap and strong substitute for cement blocks, which have a tendency to wither away in constant rain. It can be an effective liner for water bodies, especially canals, preventing water seepage. It can also be used to raise compound walls. A coat of emulsion can be provided to make it colourful and attractive.
Sadly, our own country did not take him seriously, and now the Netherlands is testing his idea and constructing roads using his patented technology. The technique will involves molding of plastic waste using blue metal into pre-fabricated bricks. These bricks help to build roads quickly.
This system will not only help to use up dangerous plastics for a good cause, but also allow roads to be built quickly. The plastic also provides durability to the roads as well as lightens the surface load as plastic is lighter than traditional road material. The maintenance cost will also be lower compared to asphalt roads. As per The Guardian, these roads are also hollow, making it easier to install cables and utility pipelines below the surface. Sections can be prefabricated in a factory and transported to where they are needed, reducing on-site construction, while the shorter construction time and low maintenance will mean less congestion caused by roadworks. Lighter materials can also be transported more efficiently.
India needs such innovations to tackle its mounting environmental and infrastructure problems. It is surprising that no mainstream media channel has tried to highlight this novel innovation yet.
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